Puncture proof cushion wheel



Aug. 2, 1932. M. A. ROBIN PUNCTURE PROOF CUSHION WHEEL Filed Aug. 4. 1927 2 Sheets-Sheet l I N VEIY TOR. M 423011111.

Aug. 2, 1932.

M. A. ROBIN PUNCTURE PROOF CUSHION WHEEL Filed Au 4. 1927 2 Sheets-Sheet 2 YI/Iiil Patented Aug. 2, 1932 MAnofiL A. ROBIN, on rennet-PRINCE, HAITI PUNCTURE IPROO.1

Application filed August 4,

This invention relates to a wheel designed tor use on vehicles generally, which will be tree of danger trom puncture and which constitutes an improvement ot the structure dis closed in my application Serial No. 109,338 and allowed December 30, 1926 and maturing into Patent 1,637,280, July 26, 1927.

The present structure particularly aims to provide a torm wherein the spokes or the equivalent will not interfere with the proper movement ot the telly and tire, relatively to the remainder of the wheel.

The more specific objects and advantages M will become apparent trom a consideration is of the description tollowing taken in connection with accompanying drawings illustrating an operative embodiment.

In said drawings:

m Figure 1 is a view in central vertical section illustrating the improved wheel;

Figure 2 is a view similar to Figure 1 but showing the axle lowered as under the weight ot a load;

Figure 3 is a detail sectional view taken 9 on the line 3-3 ot Figure 1;

Figure 1 is a detail sectional view taken on the line H of Figure 1;

Figure 5 is a view similar to Figure 1 but taken through a modified torm, and

Figure 6 is a detail elevation of one of the spokes ot a modified torm.

Referring specifically to the drawings, the wheel is equipped with a suitable hub 10 tor connection to an axle, the particular type ot hub being immaterial.

Fastened to the hub in any suitable manner as by bolts 11 is an endless reservoir 12 adapted to contain air at any appropriate pressure. This reservoir may be of any desired cross sectional area and size. Preferably it is made from a suitable stout metal so that it will be practically tree from danger of puncture.

Radiating trom the reservoir are a suitable number of spokes or pistons 15, preterably ot metal, either solid or hollow as preferred. Such pistons 15 slide radially ot the reservoir in openings 16 ot the latter but are disposed in hermetic engagement at said openings for instance through the provision of gaskets as at 17;

onsnton WHEEL 1927. Serial N'o. 21 0523.

At the outer ends, the pistons 15 terminate in balls or spheres 18, adapted tor coacti'on with a telly 19. Such telly containsa socket as at in which one of the balls 18 is loosely disposed. The inner portion of the telly aside trom the socket 20, is 0t U-shape in cross sec- I tion, and loosely accommodates the remaining balls 18. As a result of this construction, all movement ot the telly is substantially from the ball 18 within the socket 520 as a tulcrum or axis, the remaining balls being unrestricted so as not to have any means interfering with tree motion ot the telly relative to the reservoir or balance ot the wheel.

In this form of the invention, while a tire may be used'as in my aforesaid allowed application, yet I prefer to provide a rim as" at 21, whichis demountably secured in place by bolts 22 passing through the telly 19 in cooperation witha rib 23 on said telly and a detachable side plate 2 1 through which the bolt passes. 'Any suitable form of tire, solid or pneumatic as at 25 may be carried by the rim 21.

In Figure 5 a modified torm is shown. In such figure, the structure is exactly like that of the preceding form with the omission ot the socket 20, the inner portion of the telly being U-shaped in cross section completely around the same so as to be generally in contormity with the cross sectional shape through the balls and spokes. With this term, no undue interference is attorded by'the spoke incidental to the operation ot the wheel.

A modified torm is shown in Figure 6 wherein the spoke is hollow and adapted to contain oil, grease or other lubricant which may be supplied by pressure through a conventional coupling 30.- The grease or other lubricant is adapted to ooze through apertures or ports 31, of any desired number, provided in the heads or balls 18, and adapted to engage and lubricate the walls of the telly engaged by such balls.

The telly as need in the form of Figures 1 to 1, may be used on any wheel, whether motive or non-motive. The telly, however, in the case of the torm of Figure 5 can only be used on a non-motive wheel.

Since a detachable felly flange is used at 24, the device may be made to accommodate the usual rim, particularly where one is used as a spare.

5 Various changes may be resorted to provided they fall within the spirit and scope of the invention.

I claim as my invention 1. A wheel of the character specified having an air reservoir, s okes coacting with the air in said reservoir or cushioning, balls on said spokes, a telly engaged by the balls and capable of substantially unrestricted yielding movement from one of the balls as an axis.

2. A wheel of the character specified having an air reservoir, spokes coacting with the air in said reservoir for cushioning, balls onsaid spokes, a felly engaged by the balls and capable of substantially unrestricted yielding movement from one of the balls as an axis, the inner surface of the telly being hollow and having a restricted outlet to accommodate the balls and the spokes.

3. A wheel of the character specified hav ing an air reservoir, spokes coacting with the air in said reservoir for cushioning, balls on said spokes, a felly engaged by the balls and capable of substantially unrestricted yield- 9 ing movement from one of the balls as an axis, the inner surface of the telly being hollow and having a restricted outlet to accommodate the balls and the spokes, and a socket for one of the balls provided on the telly, the other balls being substantially unrestricted.

In testimony whereof I aiiix my signature.

MARGEL A. ROBIN. 

